Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

VG • F/SI2 • GIA 6502821483

Certificate GIA 6502821483

Diamond specifications and retailer prices

From £323 GBP
As of November 6, 2026
Save £694 GBP (68%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,383 GBP at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6502821483. Listed at 20 retailers as of November 4, 2026, with a 215% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6502821483
Dimensions6.25 × 4.57 × 2.89 mm
L/W Ratio1.37
Top View
6.25 mm4.57 mm0.51 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6502821483
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £323 GBP|Low: £323 GBP|High: £1,029 GBP|Avg: £547 GBP|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1£323 GBP
Retailer 9£407 GBP
Retailer 7£417 GBP
Retailer 8£448 GBP
Retailer 3£459 GBP
Retailer 2£524 GBP
Retailer 4£536 GBP
Retailer 6£591 GBP
Retailer 5£1,017 GBP

38 data points across 9 retailers

20 retailers£323 GBP to £1,017 GBP

A
Cheapest Retailer
-
£323 GBP
A
Retailer 2
-
£373 GBP
View
A
Retailer 3
-
£407 GBP
View
Final sale: no returns
A
Retailer 4
-
£417 GBP
View
Retailer 5
-
£441 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
£441 GBP
View
Price last confirmed 53 days ago
Retailer 7
-
£448 GBP
View
Price last confirmed 9 days ago
A
Retailer 8
-
£459 GBP
View
Retailer 9
-
£475 GBP
View
Price last confirmed 8 days ago
Retailer 10
-
£475 GBP
View
Price last confirmed 8 days ago
Retailer 11
-
£509 GBP
View
Price last confirmed 53 days ago
Retailer 12
-
£509 GBP
View
Price last confirmed 10 days ago
B+
Retailer 13
-
£524 GBP
View
B+
Retailer 14
-
£525 GBP
View
B+
Retailer 15
-
£536 GBP
View
B+
Retailer 16
-
£539 GBP
View
B+
Retailer 17
-
£591 GBP
View
B
Retailer 18
-
£1,017 GBP
View
Retailer 19
-
£1,383 GBP
View
Price last confirmed 53 days ago
Most Expensive
NZ Jewellers
8ca3231e-0032-4897-b85b-e3519ec4f67d · Oct 27
£1,383 GBP
$1,851 USD
View
Price last confirmed 10 days ago
19 more retailers have this diamond
Prices start from £323 GBPSave up to £694 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.51ct Oval
£323 GBP